Bellows



(No Model.)

- W. G. DAVIS.

BELLOWS.

No. 367,744. Patented Aug. 2, 1887.

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UNITED STATES PATENT OFFICE.

VILBUR G. DAVIS, OF CAMBRIDGE, MASSACHUSETTS.

BELLOWS.

SPECIFICATION forming part of Letters Patent No. 367,744, dated August 2, 1887.

Application filed November 15, 1886. Serial No. 218,968. (No model.)

To all whom, it may concern:

Be it known that I, WILBUR G. DAVIS, of Cambridge, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Bellows for Pneumatic Casl1-Oarriers, of which -the following is a full, clear, and exact description.

This invention relates to improvements in the construction of bellows more particularly for use in pneumatic cash-carrier apparatus, and for that described and shown in the Letters Patent of the United States issued to me and \V. M. I-Iinman, dated December 29, 1885, No. 338,379; and the invention consists in combination, with a bellows, of means for eontrolling and guiding it in its movements, all arranged for operation substantially as hereinafter fully described, reference being had to the accompanying sheet of drawings, in which is illustrated the present invention.

Figure 1 is a view in front elevation of a bellows constructed and arranged for operation in a suitable support-ing-frame in accord anee with this invention. Fig. 2 is a central vertical cross-section from front to rear. Fig. 3 is a front view similar to Fig. 1, but with the bellows closed. Fig. 4. is a section similar to Fig. 2, but with the bellows closed. Fig. 5 is a cross-section on line 5 5, Fig. 1. Fig. 6 is a side view reduced in size, and Fig. 7 is a detail sectional view.

In the drawings, A represents a frame-work consisting of side uprights,B, connected at the front and rear by crossbar-s O, and a top, D, all made of wood or of any suitable material.

E is the bellows located within the frame, circular in cross-section and composed of the flexible sides F, made of two thicknesses of material, the inner one, G, being of stout cotton cloth, and the outer one, H, of india-rubber cloth, the two being secured at their lower ends to the edge of a cireular'bottomboard, J,

and at their upper ends to aring or shoulder, K, of the top board, D, by glue, tacks, 830., or in any suitable manner, and so that the joints will be air-tight.

L is a treadle pivoted on each side upright, 13, at a, and extending toward the front, where it is operated at I).

M are cords or strings, one each side of the bellows, each connected by one end to an earpiece, (l, on the bottom board, J, of the bellows and extending upward and over pulleys N on the uprights and then around pulleys 1? on the treadle, and secured by their other ends to the upper part of the frame at c.

Q, is a vertical rod or wire secured by one end to the board D and extending down there from through the center of the bellows and loosely through its bottom board, J, and secured by its lower end to a horizontal metal crossbar, f, of the frame.

Attached preferably at regular intervals to the inside of the cloth portion G of the bellows, between its top and bottom, is a series of rings, R, of wire or of any suitable ma tcrial, which are secured in place to the cloth by a string or thread, 1, passing around each ring at intervals andth rough the cloth. Each of these rings has radial bars h extending toward the center, their inner ends being secured in sockets l in a flat ring or sleeve, S, encircling the central rod, Q, and adapted to freely slide up and down thereon. Between these rings R is another series of rings/1, without cross-bars, alternating with the rings R, and secured in the same manner by a string, y, to the cloth G.

In the operationof the bellows its bottom board, J, is raised through the downward movement of the treadle compressing the sides ven tically and closing the bellows, as shown in Figs. 3 and 4, the bellows being opened by the board falling by its gravity as the treadle is allowed to rise for another operation of the bellows, and iiisuch movements, by the rings R and T, secured to the flexible sides of the bellows, and the rings It, arranged to slide up and down on the central rod, Q, the sides of the bellows in its closing and opening movements are effectuallyand practically controlled and guided and kept in place, so that they will have regular folds when compressed and will not bulge unevenly outwardly or double up,

as they otherwise would, and thus interfere 9 with the free and practical operation of the bellows.

U represents, respectively, the ends of the pneumatic tubes through which the carriers,

&c., are transmitted, as connected to the bellows,the tubes communicating with the bellows and having suitable valves, &c., for closing and openingsuch communication,substantially as shown in said patent, or in any suitable manner, but needing no particular description or illustration herein, as it is no partof the present invention.

The rings can be made of any suitable material and in any suitable manner, and conneeted to the central rod for proper operation thereon, as desired; also, they can be attached to the bellows sides in any suitable manner; also, the bellows sides can be made of only one thickness or more, as desired, and. of any suitable flexible sheet material; also, the invention can be applied to other forms or shapes of bellows, and the bellows can be used for other purposes than the one herein par ticularly described.

The controlling and guiding a bellows from the center, as herein described, is very convenient and simple, and is especially advantageous for a bellows for the particular purpose herein described."

Having thus described my invention, what I claim is 1. The combination, with a bellows provided with a central guiding-rod, Q, permanently se cured at each end to a suitable support, and the bellows-bottom adapted to slide up and down thereon, of rings It, secured to the flexible sides of the bellows at desired points be tween the two ends of the bellows and con nected to and arranged to slide up and down on said rod, for the purpose specified.

2. The combination,with a bellows provided with a centralguiding-rod, Q, permanently secured at each end, and the bellows-bottom adapted to slide up and down thereon, of rings R, secured to the flexible sides of the bellows at desired points between the two ends of the bellows and connected to and arranged to slide up and down on said rod, and rings T, secured to the flexible sides of the bellows between the rings R, for the purpose specified.

3. The combination,with a bellows provided with a central guiding-rod, Q, permanently se cured at each end, and the bellows-bottom adapted to slide up and down thereon, of rings R, secured to the flexible sides of the bellows at desired points between the ends of the bellows and connected to said red by radial bars 71, and ring or sleeve S, arranged to slide up and down on said rod, for the purpose specified. Y

4. The combination, with a bellows provided with a central guiding-rod, Q, permanently sccured at each end, and the bellows-bottom adapted to slide up and down thereon, of a 

